This is no gimmick. Insects truly represent the healthiest form of animal protein on the planet.
In 100g of crickets there is at least 12.6g of protein, which is equivalent to meat, but the saturated fat content stands at only 5.5g. Insects are also extremely nutrient dense. In caterpillars, you can wolf down 10 times more iron per 100g than in beef, for example, while sago grubs and silkworms contain many times more thiamine and riboflavin than any other meaty counterpart.
With 1700 species of edible insect to choose from, you can tailor your diet to find the tastes, and nutrients, which you desire, or require. All you have to do is get your mind past the fact you are eating an insect... and let's face it, the steak you are eating had legs at one stage.